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(No Model.)

G. E. ADAMS. BUTTON OBQSTUD.

Patented Dec. 2, 1884.

\NYENTUR- N. PETERS PholO-Li lllllllllllll h 1 nnnnn D. C.

turn STATES GEORGE E. ADAMS, OF PROVIDENCE, RHODE ISLAND.

BUTTON OR STUD.

SPECIFICATION forming part of Letters Patent N0.308,6=1-'7, datedDecember 2, 1884.

Application tiled October 15, 1884. (Remodel) T ttZZ whom it mayconcern:

Be it known that I, GEORGE E. ADAMS, of Providence, in the State ofIthode Island, have made certain new and useful Improvements in Buttonsor Studs; and I do hereby declare that the following specification,takenin connection with the drawings making a part of the same, is a full,clear, and exact description thereof.

Figure 1 is an elevation of my device, show-- ing the edge of theretaining levers or arms. Fig. 2 is an elevation showing the flat sideof the levers or arms. Fig. 3 is a side View with levers locked orclosed. Fig. 4 is a vertical section on line m x, with levers closed.Fig. 5 is a top view. Fig. 6 is a vertical section on line 00 00, withlevers open. Fig. 7 is aview of the under side of the button with thelevers closed. Fig. 8 is a vertical section on line w.

The object of my invention is to produce a button or stud which shall beof the most durable construction, and at the same time capable of beingeasily introduced or withdrawn without any material distention of thebutton-hole; and it consists in the device hereinafter described.

In the drawings, A, Figs. 1, 2,- and 3, is the top of the button orstud.

B, Figs. 4, 5, 6, 7, and 8, is the under plate or disk, having arectangular opening, 0.

Extending across the opening 0, and working in suitable bearings uponeither side thereof, are two parallel arbors, D D, upon which are twopinions, E E, engaging with each other. The arbors D D are also providedwith locking-blocks F F, attached thereto, which are located indifferent perpendicular planes, so as to not interfere with each otherduring the rotation of the arbors, but sufficiently contiguous to becovered by a flat cross-spring, G, which is secured at either end to thedisk or plate B in any suitable way.

To the arbors D D curved locking arms or levers H H are attached, one ofwhich passes and works through a slot in the other, as shown in Fig. 7,the free ends being so bent and chamfered that they will practically beunitedin a single edge whenever they are brought into position forinsertion in the button-hole, as shown in Figs. 1, 2, 6, and 8.

Around the opening 0 and above the spring the levers H H are inserted inthe button-hole and the button gently pressed downward. After the thinedge formed by the combined ends of the two levers, as before described,have entered a sufficient distance to allow the thicker or curved partsof the levers to come in con tactwith the edges of the button-hole, thecontinued pressure upon the button causes the levers to moveone passingthrough a slot in the other-in the direction indicated by the dottedlines and arrows in Fig. 8, until they reach the position shown in Figs.3, 4, and 7, when the button will be found to be firmly secured.Duringthe travel of the levers and the rotation of the arbors D D auniform and simultaneous movement thereof is secured by means of thepinions E-E, which at all times compels the levers to retain acorresponding position to the plate B and to each other. The greatadvantage of this uniformity and direction of movement of the twolevers, so far as they relate to the operation of the parts thus fardescribed, resides in the avoidance of any injury to the appearance ofthe garment and the ease with which it can be attached thereto. As thelevers continue their uniform and simultaneous change of position duringthe downward pressure upon the button, so do they continue their passagethrough the button-hole. It will nowbe readily seen that the width ofthe space required for the passage of the levers will be little, if any,more than the combined thickness of the two pieces of metal whichcompose the levers, and that any considerable distention of thebutton-hole will be avoided, and consequently no great pressure upon thebutton will be required to adjustit. iVhenever the levers H H are atrest, either in the position shown in Figs. 1, 2, 6, 8 or in Figs. 3, 4,7, a fiat side of the locking-blocks F F will be in contact with thespring G and will hold the levers in either position, as the case maybe. Vhen the position of the levers is changed, the pressure exertedmust be sufficient to overcome the resistance of the spring G and permitthe passage of the edge of the lockingblocks F F as the same are turnedover and present a new flat surface to the spring. The purpose andoperation of the blocks, being such as is well understood, willnot-require a more particular description.

When it is desired to remove the button, it is only necessary to liftthe end of one of the levers with the finger, when the two levers,acting together through the aid of the pinions and in reverse of theiraction during insertion, will easily force the button out of thebuttonhole.

The spring G, and consequently the lockingbloeks F F, may be omitted,although I consider their retention necessary to a satisfactory result.

The levers H H, the arbors D D, and the pinions E E may all be made inone piece, if desired.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a button or stud, the combination of the locking-levers H H,arbors D D, having pinions E E, and the plate B, the whole con structedand operating to secure a positive corresponding simultaneous movementof the said locking-levers, substantially as and for the purposesspecified.

2. I11 a button or stud, the combination of the locking-levers H H,arbors D D, having pinions E E, and locking-blocks F F, with the springG and plate B, the whole constructed andv operating togetherin themanner substantially as described.

3. In a button or stud, the combination of the locking-levers H H,attached to their respective arbors, and working one through a slot oropening in the other, as described, their free ends uniting in a commonedge tosecure easyinsertion in the button-hole, as specified.

GEORGE ADAMS.

\Vitnesses:

WALTER B. VINCENT, CHARLES H. TITUS.

